package javafacework.no6;

public abstract class Student {
	int number;
	String name;
	String sex;
	int age;
	public Student() {
		super();
	}
	public Student(int number, String name, String sex, int age) {
		super();
		this.number = number;
		this.name = name;
		this.sex = sex;
		this.age = age;
	}
	
	public abstract double  zonghechengji();
}
